//
// Copyright (c) 2009, Markus Rickert
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//

#ifdef WIN32
#include <windows.h>
#endif // WIN32

#include <cstring>
#include <sstream>
#include <boost/lexical_cast.hpp>

#include "Exception.h"

namespace rl
{
	namespace hal
	{
		Exception::Exception(const ::std::string& what_arg) :
			::std::runtime_error(what_arg)
		{
		}
		
		Exception::Exception(const int& errnum) :
			::std::runtime_error(Exception::strerror(errnum))
		{
		}
		
		Exception::~Exception() throw()
		{
		}
		
		::std::string
		Exception::strerror(const int& errnum)
		{
#ifdef WIN32
			::LPTSTR buffer = nullptr;
			::FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, nullptr, errnum, 0, reinterpret_cast<LPTSTR>(&buffer), 0, nullptr);
			::std::string message = nullptr != buffer ? buffer : ::boost::lexical_cast< ::std::string>(errnum);
			::LocalFree(buffer);
			return message;
#else // WIN32
			return ::strerror(errnum);
#endif // WIN32
		}
	}
}
